report.setRootGroup(rootGroup);
final TestReportDesignerContext rdc = new TestReportDesignerContext();
rdc.addMasterReport(report);
rdc.setActiveDocument(rdc.getDocumentContext(0));
final ReportDocumentContext activeContext = rdc.getActiveContext();
Assert.assertNotNull(activeContext);
Assert.assertEquals(activeContext.getReportDefinition(), report);
activeContext.getSelectionModel().add(rootGroup);
CrosstabGroup crosstabGroup = new CrosstabGroup();
EditCrosstabAction action = new NonEditingCrosstabAction(crosstabGroup);
action.setReportDesignerContext(rdc);